From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?utf-8?B?aGFja2x1LnVib290?= Date: Mon, 18 Apr 2011 09:49:50 +0800 Subject: [U-Boot] =?utf-8?q?is_any_bug_in_cp=3F?= References: , <201104151401034442433@gmail.com>, <20110415084445.A7470151F83@gemini.denx.de>, <201104151715238470584@gmail.com>, <20110415102119.0200E1537B0@gemini.denx.de> Message-ID: <201104180949422307297@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de thanks , I have understanded. ------------------ hacklu.uboot 2011-04-18 ------------------------------------------------------------- ????????????Wolfgang Denk ???????????????2011-04-15 18:21:23 ????????????hacklu.uboot ?????????u-boot ?????????Re:Re: Re: [U-Boot] is any bug in cp? Dear "=?utf-8?B?aGFja2x1LnVib290?=", In message <201104151715238470584@gmail.com> you wrote: > em.. > how linux does that? What exactly are you doing in Linux? Are we talking about user-space access through a file sytem (and thus block devices) based on the MTD layer? Or about raw access to the flash devices? Or about in-kernel code directly accessing some CFI driver routines? > does linux read the data to mem first before it write to the same bank of a nor flash? For user space operations on file system level: yes. Best regards, Wolfgang Denk -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de In any group of employed individuals the only naturally early riser is _always_ the office manager, who will _always_ leave reproachful little notes ... on the desks of their subordinates. - Terry Pratchett, _Lords and Ladies_